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1.范围 1.1.本方法限于用厚度在0.25吋(6.4毫米)以上,带有缺口和疲劳裂纹的试样,通过弯曲或紧凑试验来测定金属材料的平面应变断裂韧性。
1. SCOPE 1.1. This method is limited to the measurement of the plane strain fracture toughness of metallic materials by bending or compact testing of specimens with notches and fatigue cracks of 0.25 inch (6.4 mm) or greater in thickness.